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  • Win a Free Copy of Windows Presentation Foundation 4.5 Cookbook

    - by Ricardo Peres
    Win A free copy of the 'Windows Presentation Foundation 4.5 Cookbook', just by commenting! For the contest, Packt Publishing has two eBook copies of Windows Presentation Foundation 4.5 Cookbookto be given away to two lucky winners. How you can win: To win your copy of this book, all you need to do is come up with a comment below highlighting the reason "why you would like to win this book”. Duration of the contest & selection of winners: The contest is valid for 7 days (until November 26), and is open to everyone. Winners will be selected on the basis of their comment posted. Windows Presentation Foundation 4.5 Cookbookis written by Pavel Yosifovich, the CTO of CodeValue (http://www.codevalue.net), a software development, consulting, and training company, based in Israel. This book is written in an easy-to-read style, with a strong emphasis on real-world, practical examples. Step-by-step explanations are provided for performing important tasks. This book is the best guide for C# developer who is looking forward to increase understanding and knowledge of WPF. Using this book, readers will learn to build complex and flexible user interfaces using XAML, perform lengthy operations asynchronously while keeping the UI responsive, get well-versed with WPF features such as data binding, layout, resources, templates, and styles and also customize a control’s template to alter appearance but preserve behavior. In the next days I will post my review on this book. In the meantime, here’s the table of contents: Preface Chapter 1: Foundations Chapter 2: Resources Chapter 3: Layout and Panels Chapter 4: Using Standard Controls Chapter 5: Application and Windows Chapter 6: Data Binding Chapter 7: Commands and MVVM Chapter 8: Styles, Triggers, and Control Templates Chapter 9: Graphics and Animation Chapter 10: Custom Elements Chapter 11: Threading Index I’m waiting for your comments!

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  • Game software design

    - by L. De Leo
    I have been working on a simple implementation of a card game in object oriented Python/HTML/Javascript and building on the top of Django. At this point the game is in its final stage of development but, while spotting a big issue about how I was keeping the application state (basically using a global variable), I reached the point that I'm stuck. The thing is that ignoring the design flaw, in a single-threaded environment such as under the Django development server, the game works perfectly. While I tried to design classes cleanly and keep methods short I now have in front of me an issue that has been keeping me busy for the last 2 days and that countless print statements and visual debugging hasn't helped me spot. The reason I think has to do with some side-effects of functions and to solve it I've been wondering if maybe refactoring the code entirely with static classes that keep no state and just passing the state around might be a good option to keep side-effects under control. Or maybe trying to program it in a functional programming style (although I'm not sure Python allows for a purely functional style). I feel that now there's already too many layers that the software (which I plan to make incredibly more complex by adding non trivial features) has already become unmanageable. How would you suggest I re-take control of my code-base that (despite being still only at < 1000 LOC) seems to have taken a life of its own?

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  • N64oid Brings N64 Emulation to Android Devices

    - by ETC
    Craving some Ocarina of Time adventures, Super Mario 64 antics, or some Star Fox 64 flying on your Android device? N64oid brings retro emulation of Nintendo’s popular N64 console to Android devices. N64oid is an N64 console emulator for Android devices. You’ll need a copy of the $5.99 emulator, ROMs (from the usual sources, unless you’ve got a ROM ripping setup in your basement and a stack of old cartridges), and a suitably speedy Android device. Older Android devices will find the playback choppy and subpar, but newer and speedier devices like the Nexus-One and Samsung Galaxy should have no problem handling the emulator. Like all emulators N64oid is a work in progress and emulating an entire closed-system console on a totally different set of hardware is never a perfect 1:1 emulation, but if you’re a die hard fan of classic N64 titles (check out this list of top ranked titles to inspire some nostalgia) N64oid is worth the price of a burger for sure. N64oid [Android Market via Download Squad] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Super-Charge GIMP’s Image Editing Capabilities with G’MIC [Cross-Platform] Access and Manage Your Ubuntu One Account in Chrome and Iron Mouse Over YouTube Previews YouTube Videos in Chrome Watch a Machine Get Upgraded from MS-DOS to Windows 7 [Video] Bring the Whole Ubuntu Gang Home to Your Desktop with this Mascots Wallpaper Hack Apart a Highlighter to Create UV-Reactive Flowers [Science]

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  • SQL Azure Service Issues &ndash; 10.27.2012 (Restored Now)

    - by ToStringTheory
    Please note that if you have a Windows Azure website, or use SQL Azure, your site may be experiencing downtime currently.  Notice I just called in regarding one of my public facing internet sites, because the site was failing to load anything but its error page, I couldn’t connect to the database to inspect application error logs, and the Windows Azure Management portal won’t load the SQL Azure extension. After speaking to the representative, he also mentioned that they were also having some problems updating the Service Dashboard which shows service up/down time, and for now, they are posting messages at http://account.windowsazure.com.  Please note that this issue may only be effecting certain regions.  Last, I may have misheard the representative, but he said that the outage was being categorized as a level 8, and if I heard correctly, I think he said that level 8 was the worst level.  I can’t say for sure on this though, because the phone connection to their support number was bad – large amounts of white noise. Good Luck! Update It appears that this outage may also be effecting the following services: SQL Database, Service Bus, Datamarket, Windows Azure Marketplace, Shared Caching, Access Control 2.0, and SQL Reporting. The note on the account page says for the South Central US region, however, I believe the representative I spoke to also mentioned North Central. As I said before though, the connection was bad. Update 2 My site regained connectivity about an hour ago, and it appears that the service dashboard is back in operation with correct status and history. It does appear that I misheard on the phone regarding multiple regions, so chances are this only effected a percentage of the platform. All in all, if this WAS their worst level of a problem, they really got it fixed and back up pretty fast. All in all, I understand that it is inherent for a complex system such as Azure to have ups and downs, but at the end of the day, I am still happy to support Azure to its fullest!

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  • SO-overflow induced passivity - how to cope?

    - by Ruben
    After not really working on my pet project for a while, I discovered Stackoverflow and upon perusing it more intensely I was quite amazed. I'm a bit of a perfectionist, so when I found eye-openers here highlighting many of the mistakes I made, I first wanted to fix everything. However, it's a pet project for a reason: I'm self-taught and I'm studying psychology, so programming skills can never become priority one (though it often helps, even in this field). Issues that stuck out were numerous security issues (e.g. CSRF-prevention and bcrypt eluded me) not object-oriented (at least the PHP part, the JS-part mostly is) no PHP framework used, so many of my DIY takes on commonly-tackled components (auth, ...) are either bad or inefficient really poor MySQL usage (no prepared statements, mysql extension, heard about setting proper indices two days ago) using mootools even though JQuery seems to be fashionable, so there's more probably always going to be better integration with services I'd like to use (like google visualization) So, my SO-induced frenzy turned into passivity. I can't do it all (soon) in the rather small amount of spare time I can spend on working on my project. I can leave some of the issues be in good conscience (speed stuff: an unfinished & unpublished project will never become popular, right?). No clear conscience without good security though and if I don't use a framework for auth and other complex stuff I'll regret having to do it myself. One obvious answer would probably be going open-source, but I think the project would need to become more impressive before others would commit to it. I can't afford to employ someone either. I do think the project deserves being worked on, though. How should I tackle it anyway? What's the best practice for little-practice people?

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  • Finding the Right Solution to Source and Manage Your Contractors

    - by mark.rosenberg(at)oracle.com
    Many of our PeopleSoft Enterprise applications customers operate in service-based industries, and all of our customers have at least some internal service units, such as IT, marketing, and facilities. Employing the services of contractors, often referred to as "contingent labor," to deliver either or both internal and external services is common practice. As we've transitioned from an industrial age to a knowledge age, talent has become a primary competitive advantage for most organizations. Contingent labor offers talent on flexible terms; it offers the ability to scale up operations, close skill gaps, and manage risk in the process of delivering services. Talent comes from many sources and the rise in the contingent worker (contractor, consultant, temporary, part time) has increased significantly in the past decade and is expected to reach 40 percent in the next decade. Managing the total pool of talent in a seamless integrated fashion not only saves organizations money and increases efficiency, but creates a better place for workers of all kinds to work. Although the term "contingent labor" is frequently used to describe both contractors and employees who have flexible schedules and relationships with an organization, the remainder of this discussion focuses on contractors. The term "contingent labor" is used interchangeably with "contractor." Recognizing the importance of contingent labor, our PeopleSoft customers often ask our team, "What Oracle vendor management system (VMS) applications should I evaluate for managing contractors?" In response, I thought it would be useful to describe and compare the three most common Oracle-based options available to our customers. They are:   The enterprise licensed software model in which you implement and utilize the PeopleSoft Services Procurement (sPro) application and potentially other PeopleSoft applications;  The software-as-a-service model in which you gain access to a derivative of PeopleSoft sPro from an Oracle Business Process Outsourcing Partner; and  The managed service provider (MSP) model in which staffing industry professionals utilize either your enterprise licensed software or the software-as-a-service application to administer your contingent labor program. At this point, you may be asking yourself, "Why three options?" The answer is that since there is no "one size fits all" in terms of talent, there is also no "one size fits all" for effectively sourcing and managing contingent workers. Various factors influence how an organization thinks about and relates to its contractors, and each of the three Oracle-based options addresses an organization's needs and preferences differently. For the purposes of this discussion, I will describe the options with respect to (A) pricing and software provisioning models; (B) control and flexibility; (C) level of engagement with contractors; and (D) approach to sourcing, employment law, and financial settlement. Option 1:  Enterprise Licensed Software In this model, you purchase from Oracle the license and support for the applications you need. Typically, you license PeopleSoft sPro as your VMS tool for sourcing, monitoring, and paying your contract labor. In conjunction with sPro, you can also utilize PeopleSoft Human Capital Management (HCM) applications (if you do not already) to configure more advanced business processes for recruiting, training, and tracking your contractors. Many customers choose this enterprise license software model because of the functionality and natural integration of the PeopleSoft applications and because the cost for the PeopleSoft software is explicit. There is no fee per transaction to source each contractor under this model. Our customers that employ contractors to augment their permanent staff on billable client engagements often find this model appealing because there are no fees to affect their profit margins. With this model, you decide whether to have your own IT organization run the software or have the software hosted and managed by either Oracle or another application services provider. Your organization, perhaps with the assistance of consultants, configures, deploys, and operates the software for managing your contingent workforce. This model offers you the highest level of control and flexibility since your organization can configure the contractor process flow exactly to your business and security requirements and can extend the functionality with PeopleTools. This option has proven very valuable and applicable to our customers engaged in government contracting because their contingent labor management practices are subject to complex standards and regulations. Customers find a great deal of value in the application functionality and configurability the enterprise licensed software offers for managing contingent labor. Some examples of that functionality are... The ability to create a tiered network of preferred suppliers including competencies, pricing agreements, and elaborate candidate management capabilities. Configurable alerts and online collaboration for bid, resource requisition, timesheet, and deliverable entry, routing, and approval for both resource and deliverable-based services. The ability to manage contractors with the same PeopleSoft HCM and Projects applications that are used to manage the permanent workforce. Because it allows you to utilize much of the same PeopleSoft HCM and Projects application functionality for contractors that you use for permanent employees, the enterprise licensed software model supports the deepest level of engagement with the contingent workforce. For example, you can: fill job openings with contingent labor; guide contingent workers through essential safety and compliance training with PeopleSoft Enterprise Learning Management; and source contingent workers directly to project-based assignments in PeopleSoft Resource Management and PeopleSoft Program Management. This option enables contingent workers to collaborate closely with your permanent staff on complex, knowledge-based efforts - R&D projects, billable client contracts, architecture and engineering projects spanning multiple years, and so on. With the enterprise licensed software model, your organization maintains responsibility for the sourcing, onboarding (including adherence to employment laws), and financial settlement processes. This means your organization maintains on staff or hires the expertise in these domains to utilize the software and interact with suppliers and contractors. Option 2:  Software as a Service (SaaS) The effort involved in setting up and operating VMS software to handle a contingent workforce leads many organizations to seek a system that can be activated and configured within a few days and for which they can pay based on usage. Oracle's Business Process Outsourcing partner, Provade, Inc., provides exactly this option to our customers. Provade offers its vendor management software as a service over the Internet and usually charges your organization a fee that is a percentage of your total contingent labor spending processed through the Provade software. (Percentage of spend is the predominant fee model, although not the only one.) In addition to lower implementation costs, the effort of configuring and maintaining the software is largely upon Provade, not your organization. This can be very appealing to IT organizations that are thinly stretched supporting other important information technology initiatives. Built upon PeopleSoft sPro, the Provade solution is tailored for simple and quick deployment and administration. Provade has added capabilities to clone users rapidly and has simplified business documents, like work orders and change orders, to facilitate enterprise-wide, self-service adoption with little to no training. Provade also leverages Oracle Business Intelligence Enterprise Edition (OBIEE) to provide integrated spend analytics and dashboards. Although pure customization is more limited than with the enterprise licensed software model, Provade offers a very effective option for organizations that are regularly on-boarding and off-boarding high volumes of contingent staff hired to perform discrete support tasks (for example, order fulfillment during the holiday season, hourly clerical work, desktop technology repairs, and so on) or project tasks. The software is very configurable and at the same time very intuitive to even the most computer-phobic users. The level of contingent worker engagement your organization can achieve with the Provade option is generally the same as with the enterprise licensed software model since Provade can automatically establish contingent labor resources in your PeopleSoft applications. Provade has pre-built integrations to Oracle's PeopleSoft and the Oracle E-Business Suite procurement, projects, payables, and HCM applications, so that you can evaluate, train, assign, and track contingent workers like your permanent employees. Similar to the enterprise licensed software model, your organization is responsible for the contingent worker sourcing, administration, and financial settlement processes. This means your organization needs to maintain the staff expertise in these domains. Option 3:  Managed Services Provider (MSP) Whether you are using the enterprise licensed model or the SaaS model, you may want to engage the services of sourcing, employment, payroll, and financial settlement professionals to administer your contingent workforce program. Firms that offer this expertise are often referred to as "MSPs," and they are typically staffing companies that also offer permanent and temporary hiring services. (In fact, many of the major MSPs are Oracle applications customers themselves, and they utilize the PeopleSoft Solution for the Staffing Industry to run their own business operations.) Usually, MSPs place their staff on-site at your facilities, and they can utilize either your enterprise licensed PeopleSoft sPro application or the Provade VMS SaaS software to administer the network of suppliers providing contingent workers. When you utilize an MSP, there is a separate fee for the MSP's service that is typically funded by the participating suppliers of the contingent labor. Also in this model, the suppliers of the contingent labor (not the MSP) usually pay the contingent labor force. With an MSP, you are intentionally turning over business process control for the advantages associated with having someone else manage the processes. The software option you choose will to a certain extent affect your process flexibility; however, the MSPs are often able to adapt their processes to the unique demands of your business. When you engage an MSP, you will want to give some thought to the level of engagement and "partnering" you need with your contingent workforce. Because the MSP acts as an intermediary, it can be very valuable in handling high volume, routine contracting for which there is a relatively low need for "partnering" with the contingent workforce. However, if your organization (or part of your organization) engages contingent workers for high-profile client projects that require diplomacy, intensive amounts of interaction, and personal trust, introducing an MSP into the process may prove less effective than handling the process with your own staff. In fact, in many organizations, it is common to enlist an MSP to handle contractors working on internal projects and to have permanent employees handle the contractor relationships that affect the portion of the services portfolio focused on customer-facing, billable projects. One of the key advantages of enlisting an MSP is that you do not have to maintain the expertise required for orchestrating the sourcing, hiring, and paying of contingent workers.  These are the domain of the MSPs. If your own staff members are not prepared to manage the essential "overhead" processes associated with contingent labor, working with an MSP can make solid business sense. Proper administration of a contingent workforce can make the difference between project success and failure, operating profit and loss, and legal compliance and fines. Concluding Thoughts There is little doubt that thoughtfully and purposefully constructing a service delivery strategy that leverages the strengths of contingent workers can lead to better projects, deliverables, and business results. What requires a bit more thinking is determining the platform (or platforms) that will enable each part of your organization to best deliver on its mission.

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  • Getting into game/game engine programming

    - by Darkslash
    So I am interested in learning game programming, but I really have an interest in the lower level engineering in games. I have openGL experience, and I am really interested in learning more about implementing AI, Physics, etc. I have a computer science degree, so I really like getting into technical stuff. Many times when I ask about this sort of thing, I get a lot of "Use an engine", "Use Unity3d", "Why waste your time writing code that already exists", etc etc. My idea was to use simpler libraries such as SFML or XNA so that I could learn how to implement the more complex systems. The thing is, although I do want to write games, I want to learn things that using something like Unity simply doesnt teach you. My goal is not to make a current generation quality 3D game to sell, I just want to make some cool smaller games and learn all I can about the programming side of game development. Is this something that people just do not do anymore? It seems like everywhere I turn people are using Unity or UDK or GameMaker. I fully understand why you would use a tool like these, but I cant see how they would suit my purposes. So where does someone like myself turn? Am I trying to learn something that people just do not bother doing anymore? Is the innovation in this area gone and just all about gameplay now? Im sorry if this question seems silly, but I am genuinely interested in knowing more about this and meeting more people who are interested in this sort of thing.

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  • Logging library for (c++) games

    - by Klaim
    I know a lot of logging libraries but didn't test a lot of them. (GoogleLog, Pantheios, the coming boost::log library...) In games, especially in remote multiplayer and multithreaded games, logging is vital to debugging, even if you remove all logs in the end. Let's say I'm making a PC game (not console) that needs logs (multiplayer and multithreaded and/or multiprocess) and I have good reasons for looking for a library for logging (like, I don't have time or I'm not confident in my ability to write one correctly for my case). Assuming that I need : performance ease of use (allow streaming or formating or something like that) reliable (don't leak or crash!) cross-platform (at least Windows, MacOSX, Linux/Ubuntu) Wich logging library would you recommand? Currently, I think that boost::log is the most flexible one (you can even log to remotely!), but have not good performance update: is for high performance, but isn't released yet. Pantheios is often cited but I don't have comparison points on performance and usage. I've used my own lib for a long time but I know it don't manage multithreading so it's a big problem, even if it's fast enough. Google Log seems interesting, I just need to test it but if you already have compared those libs and more, your advice might be of good use. Games are often performance demanding while complex to debug so it would be good to know logging libraries that, in our specific case, have clear advantages.

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  • Web Application: Combining View Layer Between PHP and Javascript-AJAX

    - by wlz
    I'm developing web application using PHP with CodeIgniter MVC framework with a huge real time client-side functionality needs. This is my first time to build large scale of client-side app. So I combine the PHP with a large scale of Javascript modules in one project. As you already know, MVC framework seperate application modules into Model-View-Controller. My concern is about View layer. I could be display the data on the DOM by PHP built-in script tag by load some data on the Controller. Otherwise I could use AJAX to pulled the data -- treat the Controller like a service only -- and display the them by Javascript. Here is some visualization I could put the data directly from Controller: <label>Username</label> <input type="text" id="username" value="<?=$userData['username'];?>"><br /> <label>Date of birth</label> <input type="text" id="dob" value="<?=$userData['dob'];?>"><br /> <label>Address</label> <input type="text" id="address" value="<?=$userData['address'];?>"> Or pull them using AJAX: $.ajax({ type: "POST", url: config.indexURL + "user", dataType: "json", success: function(data) { $('#username').val(data.username); $('#dateOfBirth').val(data.dob); $('#address').val(data.address); } }); So, which approach is better regarding my application has a complex client-side functionality? In the other hand, PHP-CI has a default mechanism to put the data directly from Controller, so why using AJAX?

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  • chromium-browser usus 99,99% IO disk

    - by lars
    My favorite browser: chromium is testing my patience. For some reason it sometimes uses 99,99% of I/O. (reading 2-3MB/s) Other processes (updatedb.mlocate, [kswapd0], clementine, compiz) show the same behavior. However this problem always starts and ends with chromium. To illustrate the impact on my system: when my disk starts to spin like crazy en the led burns continiously the system is so slow that it takes about two to five minuits to switch to tty6, log in and execute "killall chromiumbrowser && killall chromium" This is way faster than starting a new terminal in X, just starting a terminal seems to heavy for compiz under these circumstances. Waiting until its over takes more than 30 minuits, if it ends at all. The exact circumstances are difficult to replicate. Several tabs have to be open, usualy 8 or more. It seems that the chance to increases when more complex sites like gmail of plugins like flash are running. Opening several new tabs at omgubunt.co.uk has the best chance to replecate this isue. I have no idea where to start looking for a solution. Any help would be greatly apreciated ubuntu 12.10 | 2GB | 2x 1.66GHz Intel | 32bit | IBM Thinkpad R60e

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  • Implement service layer in MVC

    - by Dan H
    We have a defined service layer hosted in WCF. We are now building a website that will need to use the services functionality. The website is being written in ASP.NET MVC 4 and I'm trying to decide how to reference the WCF service from the MVC app. It's a large complex website and it will be changing on a weekly basis. My first reaction is to abstract out the service references (About 7 services on this one WCF host) and create a service ref facade library with which the website interacts. But, I don't know exactly how to use the service facade in MVC. I'm starting to think the Models will be responsible for it because when the controller gets a model, that model should call the service (if needed) and return what the controller asked. I'm trying to avoid having the MVC app know details of the service references. So, I could have a model factory that creates whatever model the controllers need and they can use the service facade to accomplish it. Is this a good plan, or am I off track?

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  • How to Clean Up and Fix Your Music Library with the MusicBrainz Database

    - by Erez Zukerman
    Over the years, some of us accumulate lots and lots of music files. Since these come from a variety of sources, they’re not always as neat as they could be. If your music library is in a bit of a jumble with tags missing, oddly named files and incomplete albums, read on to see how easy it is to make it neat once and for all. MusicBrainz is an online database that uses audio “fingerprints” to identify music tracks even when they’re incorrectly labelled. We’ll be using this database through a free client called Picard, available for Windows, Mac OS X and Linux. So first thing, head on over to Picard’s download page and get the installer. If you use Linux, you can install Picard using your package manager. Once you finish going through the installer, run Picard. Your firewall might pop up an alert telling you Picard is trying to access the Internet; you should agree to let Picard through. You will now see the main Picard interface. Click View > File browser (or press Ctrl+B). Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper] N64oid Brings N64 Emulation to Android Devices Super-Charge GIMP’s Image Editing Capabilities with G’MIC [Cross-Platform]

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  • A Technical Perspective On Rapid Planning

    - by Robert Story
    Upcoming WebcastTitle: A Technical Perspective On Rapid PlanningDate: April 14, 2010 Time: 11:00 am EDT, 9:00 am MDT, 8:00 am PDT, 16:00 GMT Product Family: Value Chain PlanningSummary Oracle's Strategic Network Optimization (SNO) product is a powerful supply chain design and tactical planning tool.  This one-hour session is recommended for functional users who want to gain a better understanding of how Oracle's SNO solution can help you solve complex supply chain issues, including supply chain design, risk management, logistics planning, sustainability planning, and a whole lot in between! Find out how SNO can be used to solve many different types of real-world business issues. Topics will include: Risk/Disaster Management Carbon Emissions Management Global Sourcing Labor/Workforce Planning Product Mix Optimization A short, live demonstration (only if applicable) and question and answer period will be included. Click here to register for this session....... ....... ....... ....... ....... ....... .......The above webcast is a service of the E-Business Suite Communities in My Oracle Support.For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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  • Calculate the Intersection of Two Volumes

    - by igrad
    If you've ever played The Swapper, you'll have a good idea of what I'm asking about. I need to check for, and isolate, areas of a rectangle that may intersect with either a circle or another rectangle. These selected areas will receive special properties, and the areas will be non-static, since the intersecting shapes themselves will also be dynamic. My first thought was to use raycasting detection, though I've only seen that in use with circles, or even ellipses. I'm curious if there's a method of using raycasting with a more rectangular approach, or if there's a totally different method already in use to accomplish this task. I would like something more exact than checking in large chunks, and since I'm using SDL2 with a logical renderer size of 1920x1080, checking if each pixel is intersecting is out of the question, as it would slow things down past a playable speed. I already have a multi-shape collision function-template in place, and I could use that, though it only checks if sides or corners are intersecting; it does not compute the overlapping area, or even find the circle's secant line, though I can't imagine it would be overly complex to implement. TL;DR: I need to find and isolate areas of a rectangle that may intersect with a circle or another rectangle without checking every single pixel on-screen.

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  • BizTalk Server 2009 R2 = BizTalk Server 2010

    - by Rajesh Charagandla
    Microsoft has renamed BizTalk Server 2009 R2 as BizTalk Server 2010, and is now telling customers that the evolution of the product recommends it as a major version versus a minor update. BizTalk Server 2009 R2 was designed mainly to bring to the table support for the company’s latest technologies, including Windows Server 2008 R2, SQL Server 2008 R2 and Visual Studio 2010. Following is list of key capabilities added to the release 1.       Enhanced trading partner management that will enable our customers to manage complex B2B relationships with ease 2.       Increase productivity through enhanced BizTalk Mapper. These enhancements are critical in increasing productivity in both EAI and B2B solutions; and a favorite feature of our customers. 3.       Enable secure data transfer across business partners with FTPS adapter 4.       Updated adapters for SAP 7, Oracle eBusiness Suite 12.1, SharePoint 2010 and SQL Server 2008 R2 5.       Improved and simplified management with updated System Center management pack 6.       Simplified management through single dashboard which enables IT Pros to backup and restore BizTalk configuration 7.       Enhanced performance tuning capabilities at Host and Host Instance level 8.       Continued innovation in RFID Space with out of box event filtering and delivery of RFID events

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  • How far to go with Domain Driven Design?

    - by synti
    I've read a little about domain driven design and the usage of a rich domain model, as described by Martin Fowler, and I've decided to put it in practice in a personal project, instead of using transaction scripts. Everything went fine until UI implementation started. The thing is some views will use rich components that are backed up by unusual models and, thus, I must transform the domain model into what is used by those components. And that transformation is specially "complex" in the view-to-domain portion, up to the point that some business logic is involved. Wich brings me to the questioning: where should I do these adaptations? So far I've got the following conclusions: Doing it in the presentation layer is good because, well, if that layer imposes restrictions in it's model, then it should be the one to handle them. But it's bad because there'll be some business leakage. If I do it on the services objects (controllers, actions, whatever), then it'd be good because there won't be any change to the domain API just because of presentation layer, but it's bad because then I'd have transaction scripts, wich is not the intended design. Finally, if I do it on the domain model, there'd be no leakage of business logic at all. But in the future I could expect an explosion of the API into a series of methods designed just to handle that view-model <- domain-model adaptation. I hope I could make myself clear on this.

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  • Is this kind of design - a class for Operations On Object - correct?

    - by Mithir
    In our system we have many complex operations which involve many validations and DB activities. One of the main Business functionality could have been designed better. In short, there were no separation of layers, and the code would only work from the scenario in which it was first designed at, and now there were more scenarios (like requests from an API or from other devices) So I had to redesign. I found myself moving all the DB code to objects which acts like Business to DB objects, and I've put all the business logic in an Operator kind of a class, which I've implemented like this: First, I created an object which will hold all the information needed for the operation let's call it InformationObject. Then I created an OperatorObject which will take the InformationObject as a parameter and act on it. The OperatorObject should activate different objects and validate or check for existence or any scenario in which the business logic is compromised and then make the operation according to the information on the InformationObject. So my question is - Is this kind of implementation correct? PS, this Operator only works on a single Business-wise Operation.

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  • Server side C# MVC with AngularJS

    - by Ryan Langton
    I like using .NET MVC and have used it quite a bit in the past. I have also built SPA's using AngularJS with no page loads other than the initial one. I think I want to use a blend of the two in many cases. Set up the application initially using .NET MVC and set up routing server side. Then set up each page as a mini-SPA. These pages can be quite complex with a lot of client side functionality. My confusion comes in how to handle the model-view binding using both .NET MVC and the AngularJS scope. Do I avoid the use of razor Html helpers? The Html helpers create the markup behind the scene so it could get messy trying to add angularjs tags using the helpers. So how to add ng-model for example to @Html.TextBoxFor(x = x.Name). Also ng-repeat wouldn't work because I'm not loading my model into the scope, right? I'd still want to use a c# foreach loop? Where do I draw the lines of separation? Has anyone gotten .NET MVC and AngularJS to play nicely together and what are your architectural suggestions to do so?

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  • Visual WebGui helps Dawsons put its Windows Forms HR system on the web

    - by Webgui
    Dawsons needed to upgrade their existing Windows Forms LAN human resources system to allow better and flexible access to the ever increasing data size as labor hire clients are demanding easy access to copies of tickets and licenses and etc. The company has some 30,000 applicants on file, but access to this data has been complex and limited with the current system. Therefore the IT department was asked to find a possible solutions that would allow creating a web based application while utilizing as much of the existing Windows Forms code as possible. Visual WebGui was found to be highly regarded in many frameworks comparisons so the team decided to give Visual WebGui a try. It didn’t take long for them to recognize that the Visual WebGui controls appear and react over the web the same as desktop controls. This and the fact that most of the code was directly ported which saved Dawsons hundreds of development hours are what make Visual WebGui so unique and productive. “My first impression of Visual WebGui was perhaps disbelief. Not being a seasoned Web programmer, I initially found it hard to accept so much functionality from a web based application. Also, the speed is exceptional” said John Sainsbury, Financial Controller of the Dawsons Group who added “Since working with Visual WebGui, I have showcased parts of the application to our major clients, some of whom use SAP portals, and they are amazed.” The result was so satisfying that the company is now looking to produce a mobile version for accessing the labor pool on the go. “By removing the barriers of the local network, Visual WebGui has changed how we can do business” said Lloyd Everist, General Manager Dawsons Group. Read more about this story

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  • Implement Budget Allocation in DAX for Power Pivot and Tabular #powerpivot #tabular #ssas #dax

    - by Marco Russo (SQLBI)
    Comparing sales and budget, or costs and budget, is a very common operation. However, it is often the case that you have different granularities for different tables containing budget and the data to compare with. There are two ways to do that: you can limit the comparison to the granularity that is common to the two tables, or you can allocate the budget where it’s not defined. For example, if you have a budget defined by quarter and category, you might want to allocate it by month and product. In this way, you will do the comparison as you had a more granular definition of the budget, without actually having to do the manual job of allocating data (usually in an Excel worksheet!). If you want to do budget allocation in DAX, you can use the Budget Patterns we published on DAX Patterns. If you come from and MDX/OLAP background, at first you might find it hard to solve the problem of not having attribute hierarchies that helps you in propagating the budget values to lower hierarchical levels. However, I think that once you get used to DAX, you will find the behavior very predictable and easy to “debug” also for more complex allocation formula. You just have to be careful in writing the DAX formula, but probably the pattern we wrote should help you designing the right data model, without creating physical relationships to the budget table! This pattern is also based on the Handling Different Granularities scenario I discussed a couple of weeks ago.

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  • Strategy for restoring state via URL in web apps

    - by JW01
    This is a question about modern web apps, where a single page is loaded, and all subsequent navigation is done by XHR calls and modifying the DOM. We can use libraries that manipulate the hash string, which let us navigate by URL and support the back/forward buttons. But to use those libraries, we need to be able to move the UI from any one state to any other. Is there a good strategy for moving between UI states, that also allows them to be restored from scratch when you load a new URL? In a complex app, you might have a lot of different states. You don't want to reload the entire UI each time you change states. But you also don't want to require separate methods for moving from every state to each every state. Typically we need to: Restore a state from scratch, when you enter a new URL or hit Reload. Move from one state to another, when you use the Back/Forward buttons. Move from one state to another, when you perform an action within your app (like clicking a link). Move to certain states that shouldn't be added to the history, like ones that appear after form submissions. Move to some states that are built on the previous state, like a drill-down list. When you perform actions within your app, there's the additional question of which comes first: Do you change the URL, listen for the URL change, and change your state in response to it? Or do you change your state, then change the URL, but don't do anything in response? Does anyone have some experience to share on this topic?

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  • Pub banter - content strategy at the ballot box?

    - by Roger Hart
    Last night, I was challenged to explain (and defend) content strategy. Three sheets to the wind after a pub quiz, this is no simple task, but I hope I acquitted myself passably. I say "hope" because there was a really interesting question I couldn't answer to my own satisfaction. I wonder if any of you folks out there in the ethereal internet hive-mind can help me out? A friend - a rather concrete thinker who mathematically models complex biological systems for a living - pointed out that my examples were largely routed in business-to-business web sales and support. He challenged me with: Say you've got a political website, so your goal is to have somebody read it and vote for you - how do you measure the effectiveness of that content? Well, you would. umm. Oh dear. I guess what we're talking about here, to yank it back to my present comfort zone, is a sales process where your point of conversion is off the site. The political example is perhaps a little below the belt, since what you can and can't do, and what data you can and can't collect is so restricted. You can't throw up a "How did you hear about this election?" questionnaire in the polling booth. Exit polls don't pull in your browsing history and site session information. Not everyone fatuously tweets and geo-tags each moment of their lives. Oh, and folks lie. The business example might be easier to attack. You could have, say, a site for a farm shop that only did over the counter sales. Either way, it's tricky. I fell back on some of the work I've done usability testing and benchmarking documentation, and suggested similar, quick and dirty, small sample qualitative UX trials. I'm not wholly sure that was right. Any thoughts? How might we measure and curate for this kind of discontinuous conversion?

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  • Can the csv format be defined by a regex?

    - by Spencer Rathbun
    A colleague and I have recently argued over whether a pure regex is capable of fully encapsulating the csv format, such that it is capable of parsing all files with any given escape char, quote char, and separator char. The regex need not be capable of changing these chars after creation, but it must not fail on any other edge case. I have argued that this is impossible for just a tokenizer. The only regex that might be able to do this is a very complex PCRE style that moves beyond just tokenizing. I am looking for something along the lines of: ... the csv format is a context free grammar and as such, it is impossible to parse with regex alone ... Or am I wrong? Is it possible to parse csv with just a POSIX regex? For example, if both the escape char and the quote char are ", then these two lines are valid csv: """this is a test.""","" "and he said,""What will be, will be."", to which I replied, ""Surely not!""","moving on to the next field here..."

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  • Welcome to the South African 2010 Graduate Intake&hellip;&hellip;

    - by anca.rosu
    It has been an exciting couple of months for Oracle South Africa, for our hiring managers, for Wendy & the Transformation team, for the Graduate Recruitment team. We have been extremely dedicated in interviewing, selecting and identifying this year’s graduate intake. We have made a commitment in South Africa that we need to transform our organization and develop and empower Black individuals who historically have not had the opportunity to participate in the global economy. This week we have hired and welcomed a mix of very talented, ambitious young professionals with qualifications in Marketing, Sales, Technology, Business, Legal and Training. Please join me in wishing them all the best as they now embark on a 10 month training programme which has been designed and customized to progress their career by tapping into and developing the core skills and knowledge they will need to prosper in Oracle’s complex and ever changing organization.   If you have any questions related to this article feel free to contact  [email protected].  You can find our job opportunities via http://campus.oracle.com. Technorati Tags: Oracle,South Africa,Graduate,empower,global economy,Marketing,Sales,Technology,Business,Legal,Training

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  • Character progression through leveling, skills or items?

    - by Anton
    I'm working on a design for an RPG game, and I'm having some doubts about the skill and level system. I'm going for a more casual, explorative gaming experience and so thought about lowering the game complexity by simplifying character progression. But I'm having trouble deciding between the following: Progression through leveling, no complex skill progression, leveling increases base stats. Progression through skills, no leveling or base stat changes, skills progress through usage. Progression through items, more focus on stat-changing items, items confer skills, no leveling. However, I'm uncertain what the effects on gameplay might be in the end. So, my question is this: What would be the effects of choosing one of the above alternatives over the others? (Particularly with regards to the style and feel of the gameplay) My take on it is that the first sacrifices more frequent rewards and customization in favor of a simpler gameplay; the second sacrifices explicit customization and player control in favor of more frequent rewards and a somewhat simpler gameplay; while the third sacrifices inventory simplicity and a player metric in favor of player control, customization and progression simplicity. Addendum: I'm not really limiting myself to the above three, they are just the ones I liked most and am primarily interested in.

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